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2013-06-17

Knowledge-Aided (Potentially Cognitive) Sidelobe Nulling on Transmit for Mechanical Distortions of Phased Array Antennas

By Ying Sun, Zi-Shu He, and Jun Li
Progress In Electromagnetics Research C, Vol. 41, 67-80, 2013
doi:10.2528/PIERC13050204

Abstract

Mechanical distortions of phased array antennas make transmit pattern distort. The transmit pattern cannot be simply calibrated by compensating the position error of each element since the effect of the mechanical distortions is angle-dependent. To solve this problem, we treat the element position errors measurement as prior knowledge and propose a knowledge-aided (potentially cognitive) transmit pattern design method. When the mechanical distortions occur, the cognitive transmit pattern can still place pattern nulls in the directions of interferences while preserving the main beam response of the target of interest. The proposed method is validated by simulation results.

Citation


Ying Sun, Zi-Shu He, and Jun Li, "Knowledge-Aided (Potentially Cognitive) Sidelobe Nulling on Transmit for Mechanical Distortions of Phased Array Antennas," Progress In Electromagnetics Research C, Vol. 41, 67-80, 2013.
doi:10.2528/PIERC13050204
http://jpier.org/PIERC/pier.php?paper=13050204

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